Means for conveying and supplying gas



(No Model.)

Patented Jan. 5, 1886 IN-YENTOR. I

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ATTORNE WITNESSES:

PETERS. Phulomha hur. Washington. D c

UNITED STATES PATENT OFFICE.

GEORGE WESTINGHOUSE, JR, OF PITTSBURG, PENNSYLVANIA.

MEANS FOR CONVEYING AND SUPPLYlNG G'AS.

SPECIFICATION forming part. of Letters Patent No. 333,800, dated January 5, 1886.

Application filed February 3, 1885. Serial No. 154,828. (No model.)

To all whom it may concern:

Be it known that I, GEORGE WVESTING- HOUSE, Jr., a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered a certain new and useful Improvement in Systems or Means for Conveying and Supplying Gas, of which improvement the following is a specification.

In the accompanying drawing, which makes part of this specification, the figure is a diagrammatic plan of a pipeline illustrating the operation of my invention.

The object of my invention is to aflord increased delivery capacity in a gas-main, to reduce the tendency to leakage or rupture, and to provide for delivery to different desired points of utilization in accordance with varying conditions of volume and pressure which may be demanded thereat respectively. To this end my invention, generally stated, consists in the combination of a gas-supply pipe, a reduced pressure main connected thereto, and a series of exhausters, each governed in operation proportionately to delivery-pressure, and having a suction-pipe connected to the reducedpressure main, and a delivery-pipe communicating with a discharge to a desired point of utilization.

The improvement claimed is hereinafter fully set forth.

In the practice ofmy invention I providea reduced-pressure main, 2, extending throughout the district to be supplied, or for such length as may be within the limits of the supply district and of other territory in which it is desirable or necessary that the conveyance of gas at high pressure should be avoided. A gassupply pipe, 1, leading from a well or generator, is connected to the end of the reduced-pressure main nearest thereto, and the main is provided with a suitable escape-valve, 7, loaded to admit of the relief of any excess of pressure at the point at which it is located above that corresponding with a determined average low pressure in the main 2, such pressure being at or about that of the atmosphere. An escape pipe, 8, leads from the valve 7 to a proper point of discharge.

The supply of gas from the main 2 to the several mills, manufactories,dwelling-houses,8m., in which it is required for consumption, or to independent street-distributing systems, is effected through receiving pipes 3, each of which is furnished with an automatically'acting check-valve, 10, to prevent return of gas to the main, and leads therefrom to the receiving side of an exhausting apparatus, 9. As a precaution additional to the check-valves l0,flame-intercepting diaphragms of any suitable construction may be located in the pipes 3. The exhausting apparatus may be a rotary or reciprocating pump or blower or a jetexhauster operated by high pressure gas conveyed in a suitably-protected pipe. The delivery-pipe 11 of each exhauster supplies gas through a service pipe or pipes, 12, to the burners or furnaces of the mill or other building to which it is apportioned, or to an independent street-distributing system, as the case may be, and the exhauster is operated by any suitable motor to draw gas from the main and force it into the service-pipes for such periods and at such rate of exhaustion as may be from time to time required, its operation being governed by a'pressure-regulator, 13, of any well-known construction,which is actuated through a pipe, 14, by the pressure of gas in the main or the delivery pipe to increase or diminish the degree of opening of the throttle or supply valve through which operating fluid passes to the motor.

Each individual consumer and separate distribution-system being provided with an in dependent exhausting apparatus, an independent supply of gas is afforded to the several points of utilization for such periods and in such quantities as may respectively be required, and, an average low pressure not being exceeded in the main, the greatest practicable delivery capacity thereof is aftorded and the objectionable tendency to leakage or rupture obviated.

I am aware that the employmentoi' forcing orcing and exhausting apparatus in connection with a gas-main, for the purpose of delivering a larger quantity at agiven point is not new; and am further aware that it has been proposed to combine with a system of gas pipes or mains two exhausters, one of which forces gas from a supply-holder into the mains and i the other draws out the gas from the opposite extremity of the mains and forces the excess into a second holder. I disclaim, therefore, broadly, the combination of an exhausting apparatus with a gas-main, as Well as a gas-main divided into longitudinally-adjoining compartments and having a series of exhausters transferring gas from one to another of said compartments, as is set forth in my applications, Serial Nos. 154,829 and 154,830, filed of even date herewith.

Iclaim herein as my invention 1. The combination of a gas-supply pipe, a reduced-pressure main connected thereto, a relief-valve governing a discharge-opening in the reduced-pressure main, and a series ofexhausting mechanisms, each havinga receivingi. pipe connected with the main and a deliverypendent distribution system, substantially as set forth.

2. The combination ofa mainthrough which gas is conducted at a pressure at or below that of the atmosphere, a gassupply pipe leading thereinto, a series of exhausting mechanisms, each having a receiving-pipe connected With the main and a delivery-pipe leading to a special supply or distribution system, and a series of pressure-regulators each actuated by the pressure of the gas in the main or in a delivery-pipe, and governing the supply of motive fluid to one of the exhausting mechanisms, substantially as set forth.

In testimony whereof I have hereunto set my hand.

G110. WESTINGHOUSE, JR.

Witnesses:

J. SNOWDEN BELL, R. H. Wnrr'rLEsEY. 

